diff -r 0cb4eda146c4 -r 7608af69739f src/server/util/pblock.h
--- a/src/server/util/pblock.h	Fri Jan 28 15:44:30 2022 +0100
+++ b/src/server/util/pblock.h	Fri Jan 28 16:01:05 2022 +0100
@@ -303,6 +303,8 @@
 extern const pb_key *const pb_key_warning;
 extern const pb_key *const pb_key_depth;
 extern const pb_key *const pb_key_if;
+extern const pb_key *const pb_key_vfs;
+extern const pb_key *const pb_key_vfsclass;
 
 NSAPI_PUBLIC pool_handle_t *pblock_pool(pblock *pb);